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Finding the Fourth Proportional to 545,158.44, 752,318.56 and 303,435.80

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Solution

The fourth proportional to 545,158.44, 752,318.56 and 303,435.80 is: 418,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,158.44 : 752,318.56 = 303,435.80 : x
  2. Step 2: Convert to fraction form
    545,158.44/752,318.56 = 303,435.80/x
  3. Step 3: Cross multiply
    545,158.44x = 752,318.56 × 303,435.80
  4. Step 4: Simplify right side
    545,158.44x = 228,280,384,108.45
  5. Step 5: Solve for x
    x = 228,280,384,108.45/545,158.44
  6. Step 6: Final answer
    x = 418,741.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.